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Chapter18 Sec.1 voca
Biology ch 18 vocab.
| Term | Definition |
|---|---|
| virus | is an infectious particle made only of a strand of DNA and RNA surrounded by a protein coat. |
| pathogen | a type of infectious agent |
| viroids | are infectious particles that cause disease in plants. |
| prion | is an infectious particle made only of proteins that can cause other proteins to fold incorrectly. |